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1.
ＣＲＹＳＴＡＬＳＴＲＵＣＴＵＲＥＳＯＦＣＨＡＲＧＥＴＲＡＮＳＦＥＲＳＡＬＴＳ（ＴＴＭＴＴＦ）_２Ｃｕ_２Ｃｌ_６ＡＮＤＣ_（４０）Ｈ_（７２）Ｎ_６Ｓｅ_４ＮｉＣｈｅｎＸｕｅ－ａｎ；ＹａｎｇＸｕｅ－ｙｏｎｇ；ＷｕＰｅｉ－ｊｉ；ＺｈｕＤａｏ－ｂｅｎ；ＦｕＨｅ?.. 相似文献
2.
目的：探讨高原缺氧环境对藏族儿童心脏功能及血流动力学的影响。方法：应用ＨＤＩ－３０００型彩色多普勒血流成像技术检测１００例茂族正常儿童心内血流速度参数及心脏功能、形态。结果：「１」肺动脉峰值流带与主动脉峰值流带基本相等；「２」ＡＴ、ＤＴ：二尖瓣〈三尖瓣；「３」ＰＧＲ：主动态〉肺动脉〉二尖瓣〉三尖瓣；「４」ＬＶＥＴ均值２５０Ｍｓ，ＬＶＭＡＳＳ均值。４１．９５ｇ、ＥＦ６２．０６％、结论：「１」拉萨地区 相似文献
3.
目的：探讨西藏拉萨地区乙型肝炎病毒（ＨＢＶ）血清免疫学标记的组合模式。方法 共２２４８例ＨＢＶ血清样本，均以免疫酶联技术（ＥＬＩＳＡ）法检测５项指标。以聚合莲反应（ＰＣＲ）检测ＨＢＶ ＤＮＡ。为表述方便，设定血清ＨＢＶ免疫学标记检测项目第１－５项的排列顺序为（１）乙肝表面抗原（ＨＢｓＡｇ），（２）乙肝表面抗体（抗－ＨＢｓ），（３）乙肝ｅ抗原（ＨＢｓＡｇ），（４）乙肝ｅ抗体（抗－ＨＢｅ），（５）乙肝 相似文献
4.
Wang Hui-jun 《中国科学院研究生院学报》1994,(1)
ＴＨＥＳＥＮＳＩＴＩＶＩＴＩＥＳＯＦＴＨＥＡＧＣＭＴＯＴＨＥＳＯＬＡＲＣＯＮＳＴＡＮＴＣＨＡＮＧＥＡＮＤＧＥＯＧＲＡＰＨＩＣＡＬＬＹＶＡＲＹＩＮＧＳＳＴＡ￥ＷａｎｇＨｕｉ－ｊｕｎ（ＬＡＳＧ，ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＰｈｙｓｉｃｓ，... 相似文献
5.
本文使用相转移催化剂（ＴＢＡＢ）合成了空间位阻大、碳链长的６个含特丁基的三羟甲基烷烃ｔ－Ｂｕ（ＣＨ２）ｎＣ（ＣＨ２ＯＨ）３（ｎ＝０、１、２、３、４、６），测定了这些化合物的熔点，进行了元素分析、质谱、红外光谱鉴定。 相似文献
6.
ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＦＲＡＣＴＡＬＳＡＰＰＥＡＲＥＤＯＮＡＬＵＭＩＮＩＵＭＦＯＩＬＩＲＲＡＤＩＡＴＥＤＢＹＩＮＴＥＮＳＥＲＥＬＡＴＩＶＩＳＴＩＣＥＬＥＣＴＲＯＮＢＥＡＭ￥ＧａｏＨｕａｉ－ｌｉｎ；ＰａｎＹｕ－ｌｉ（ＣｈｉｎａＩｎｓｔ... 相似文献
7.
ＡＮＯＴＥＯＮＦＩＲＳＴＰＡＳＳＡＧＥＴＩＭＥＳＦＯＲＧＩ／Ｍ／１ＴＹＰＥＭＡＲＫＯＶＰＲＯＣＥＳＳＥＳ￥Ｘｕｅ－Ｍｉｎｇ；Ｙｕａｎ（ＩｎｓｔｉｔｕｔｅｏｆＡｕｔｏｍａｔｉｏｎ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ，Ｂｅｉｊｉｎｇ，１００... 相似文献
8.
对４３例颖似钩体病神经系统后发症患者血清及６９份正常人血清用４种血清学诊断方法作检测比较，发现ＭＡＴ、ＩＭ－ＥＬＩＳＡ，ＩＣＡＴ和ＥＩＤＴ的阳性率分别为９５．３％、９５．３％、９３．０％和９５．３％，对该病的诊断除了具备流行病学指针和临床病和体征外，选用１或２种血清学诊断方法，即可对钩体病神经系统后发症作出确定诊断，便于及早提供治疗措施。 相似文献
9.
氧化镧对Cu—O／γ—Al2O3催化剂活性和结构的影响 总被引：1，自引：0，他引：1
在色谱－微反流动法实验装置上考察了三种催化剂对ＣＯ和ＣＨ４的氧化活性，并运用ＢＥＴ、ＸＲＤ及ＴＰＲ等技术研究了Ｌａ２Ｏ３的添加对Ｃｕ－Ｏ／γ－Ａｌ２Ｏ３催化剂性能及催化剂氧化还原特性的影响．结果表明，Ｌａ２Ｏ３的添加不仅使Ｌａ２Ｏ３与ＣｕＯ之间产生相互作用，且也与载体γ－Ａｌ２Ｏ３产生相互作用；Ｌａ２Ｏ３的添加促进了ＣｕＯ在γ－Ａｌ２Ｏ３上的分散，并使ＣｕＯ均以非晶相形式存在，从而改善了Ｃｕ－Ｏ／γ－Ａｌ２Ｏ３催化剂对ＣＯ和ＣＨ４的氧化活性，还使Ｌａ－Ｃｕ－Ｏ／γ－Ａｌ２Ｏ３催化剂的ＴＰＲ峰温降低了７５℃． 相似文献
10.
ＱＵＡＮＴＵＭＣＨＥＭＩＣＡＬＳＴＵＤＩＥＳＯＮＡＮＥＷＯＲＧＡＮＯＳＵＬＦＵＲＲＥＡＣＴＩＯＮＭＥＣＨＡＮＩＳＭＺｈｕＪｉｎ；ＣｈｅｎＹａ－ｌｉｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＣｈｅｍｉｓｔｒｙ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊｉｎｇ１０００８０... 相似文献
11.
Suleyman Demir Nergiz Zorbozan Elif Basak 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2016,26(1):77-81
Introduction
We aimed to determine the number of repeated cholesterol (RC) tests and the ratio of unnecessary-repeated cholesterol (URC) tests among patients admitted to Pamukkale University Hospital (Denizli, Turkey) and provide solutions to avoid URC testing.Materials and methods
Total cholesterol (T-cholesterol) tests (N = 86,817) between June 2014 and May 2015 were evaluated. The tests performed more than once per patient were determined as RC test (N = 28,811). RC test with an interval shorter than 4 weeks were determined as URC test (N = 3968) according to the shortest retest interval stated in ACC/AHA blood cholesterol guideline. RC testing included internal medicine, surgery and paediatric outpatients and inpatients. Reference change value (RCV) of total cholesterol was calculated.Results
The 33.1% of the T-cholesterol tests were RC tests (N = 28,811), 13.7% of them were URC tests (N = 3968). Our RCV value was 25%. The percentage change between consecutive tests was less than RCV in 86.1% (N = 3418) of URC tests. URC tests were performed more frequently in patients with desirable total cholesterol value (P < 0.001).Conclusion
There is a significant part of repeated T-cholesterol tests requested in our hospital. URC test requests can be evaluated by laboratories and the obtained data should be shared with clinicians. Laboratories can calculate RCV for the tests they performed and report this value with the test result. To prevent from URC tests, a warning plug-in can be added to hospital information software in accordance with guidelines to prevent from URC test requests.Key words: unnecessary repeated cholesterol test, cholesterol retest interval, reference change value, laboratory costs, preanalytical phase, test requesting 相似文献12.
Aysenur Atay Leyla Demir Serap Cuhadar Gulcan Saglam Hulya Unal Saliha Aksun Banu Arslan Asuman Ozkan Recep Sutcu 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2014,24(3):376-382
Introduction:
Preanalytical errors, along the process from the beginning of test requests to the admissions of the specimens to the laboratory, cause the rejection of samples. The aim of this study was to better explain the reasons of rejected samples, regarding to their rates in certain test groups in our laboratory.Materials and methods:
This preliminary study was designed on the rejected samples in one-year period, based on the rates and types of inappropriateness. Test requests and blood samples of clinical chemistry, immunoassay, hematology, glycated hemoglobin, coagulation and erythrocyte sedimentation rate test units were evaluated. Types of inappropriateness were evaluated as follows: improperly labelled samples, hemolysed, clotted specimen, insufficient volume of specimen and total request errors.Results:
A total of 5,183,582 test requests from 1,035,743 blood collection tubes were considered. The total rejection rate was 0.65 %. The rejection rate of coagulation group was significantly higher (2.28%) than the other test groups (P < 0.001) including insufficient volume of specimen error rate as 1.38%. Rejection rates of hemolysis, clotted specimen and insufficient volume of sample error were found to be 8%, 24% and 34%, respectively. Total request errors, particularly, for unintelligible requests were 32% of the total for inpatients.Conclusions:
The errors were especially attributable to unintelligible requests of inappropriate test requests, improperly labelled samples for inpatients and blood drawing errors especially due to insufficient volume of specimens in a coagulation test group. Further studies should be performed after corrective and preventive actions to detect a possible decrease in rejecting samples. 相似文献13.
Budak YU Huysal K Polat M Tarakçi G Uçar H 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2012,22(1):121-126
Introduction
The aim of the present study was to validate prothrombin time (PT) international normalized ratio (INR) results obtained using Steelex test reagents and a Steelex coagulometer (Steelex Scientific Instrument Company, Beijing, China), in comparison with use of a well-established standard test employing Pacific Hemostasis reagents (Fisher Diagnostics, Middletown, VA, USA) and Teco Coatron A4 coagulometer (Teco Medical Instruments GmbH, Neufahrn, Germany).Materials and methods:
Between- and within-day coefficients of variation (CVs) of both assays were calculated using control samples provided by the test manufacturers. Samples from 90 subjects were collected and INR values were determined in a double-blind parallel manner employing both systems.Results:
The within-day coefficients of variation (CVs) in INR estimates ranged from 2.6% (INR = 1.12) to 3.1% (INR = 2.51) for the Steelex system and from 2.1% (INR = 1.09) to 1.8% (INR = 2.8) for the Pacific test; the between-day values ran from 3.4% (INR = 1.16) to 7.9% (INR = 2.64) and from 3.3% (INR = 1.1) to 2.3% (INR = 2.7), respectively. Passing-Bablok fit of the of the Steelex and Pacific methods yielded the equation: Steelex INR = 0.85 (0.79–0.91) × Pacific INR + 0.12 (−0.02–0.21), whereas the CUSUM linearity P value was < 0.01. The mean bias as determined by the Bland-Altman test was −0.156 (−0.912–0.600).Conclusion:
The results obtained using Steelex reagents and the M600H coagulometer are not equivalent to those obtained using Pacific Hemostasis reagents and a Teco Coatron A4 coagulometer, at least in the therapeutic range. 相似文献14.
Singh TD Barbhuiya MA Gupta S Shrivastav BR Jalaj V Agarwal N Tiwari PK 《Indian journal of clinical biochemistry : IJCB》2011,26(2):146-153
We have studied the expression of lactate dehydrogenase and its isoforms in gall bladder cancer, cholelithiasis and chronic
cholecystitis. Quantitative and qualitative assays of lactate dehydrogenase and its various isoforms were carried out in the
blood sera of patients and healthy controls along with parallel estimation of various liver function test enzymes. Statistical
analysis was done using the software Graph Pad Prism. Significantly high expression of lactate dehydrogenase along with alkaline
phosphatase and total bilirubin (P ≤ 0.05) was observed in all the three clinical conditions as compared to controls. LDH showed an increasing trend from stage
I to stage IV of GBC indicating a significant positive association with the disease progression. The levels of LDH 3 and 4
isoforms appeared significantly more elevated in GBC than cholelithiasis or chronic cholecystitis. We suggest that a careful
estimation of total LDH and its isoforms 3 and 4 alone or along with alkaline phosphatase and total bilirubin during different
clinical stages, like chronic cholecystitis, cholelithiasis and GBC, may prove to be a potentially useful biomarker in the
prognostic management of gall bladder diseases, specifically GBC. 相似文献
15.
茶多酚抗突变和消除自由基作用的研究 总被引：6，自引：0，他引：6
采用Ｅ．ＣｏｌｉＳＯＳ显色法，小鼠骨髓细胞微核及染色体畸变试验和体外自由基消除实验等方法测定了茶多酚复合物（ＴＰ）的抗突变和消除自由基作用．结果表明：（１）ＴＰ的终浓度在２．５和５ｍｇ／ｍｌ时，对由阳性致突变物ＭＮＮＧ，ＥＭＳ和ＮａＮ＿３诱导的ＳＯＳ应答反应均具有明显的抑制作用；（２）小鼠每日ｉｇ４０、８０和１２０ｍｇ／ｋｇ剂量的ＴＰ能明显抑制由环磷酰胺（ＣＰ）诱发的骨髓ＰＣＥ的ＭＮＣＦ，三种剂量ＴＰ的抑制率分别为４０．９８％、６６．７６％和６５．９４％；（３）ＴＰ对ＭＭＣ诱发的骨髓细胞染色体畸变（ＣＡ）的抑制率分别为６２．５６％、５５．７１％和４７．９５％；（４）在Ｘ／ＸＯ－ＥＳＲ、Ｘ／ＸＯ／Ｌｕｍｉｎｏｌ－ＢＣＬ和ＩＲ／ＮＢＴ－ＳＰＭ三种模型中ＴＰ对超氧阴离子Ｏ＿２自由基均具有极强的消除作用，消除率分别为９８±６％、９８±１．２％和９５±１．５％，对Ｏ＿２的消除效率明显强于维生素Ｃ和Ｅ，对不同工艺制备的ＴＰ消除活性氧自由基作用的测定结果显示：脱咖啡碱程度高，ＥＧＣ和Ｌ－ＥＧＣＧ含量比例高的ＴＰ－３制剂消除Ｏ＿２的效率最高．因此，ＴＰ消除有害自由基，中断或终止自由基的氧化反应是抗突变，抗肿瘤作用的主要机制 相似文献
16.
ZHANG Yuhan 《中国科学院院刊(英文版)》2003,17(2):91-95
Next to its three forerunners,Chinas manned spaceshipShenzhou-4 (unmannedspace flight test) was successfullylaunched on December 30, 2002.The payload specialists at CAS hadarranged a series of applied researchexperiments assigned to the orbit-ing space vehicle, predominantlyinvolving the earth-observing mi-crowave remote sensing, the com-prehensive inspection of the spaceenvironment, space bio-technologyand fluid physical tests under mi-cro-gravity conditions. At present,the orbiting equipme… 相似文献
17.
介绍了磷酸铁锂LiFePO4动力电池的工作特性,根据其放电特性提出了一种大功率LED驱动电源解决方案,分别对1W和3W的LED光源进行放电实验测试。实验结果表明,采用磷酸铁锂电池作为LED光源的供电装置具有众多的优点和广泛的应用前景。 相似文献
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19.
针对主成分分析和因子分析广泛应用于科技评价,但是对评价方法选用缺乏检验问题。本文建立了主成分分析与因子分析评价方法适用性的检验框架与检验体系,从评价前检验、评价中检验、评价后检验3个角度进行检验。评价前检验包括KMO检验、Bartlett检验、正态分布检验;评价中检验主要是评价指标信息损失检验;评价后检验主要包括主成分或公共因子的解释力检验、代表性检验、指标单调性检验和权重合理性检验。并以JCR 2015经济学期刊为例进行了实证分析,研究认为,采用主成分分析和因子分析评价必须进行方法适用性检验;因子分析在信息损失较大时不适用于科技评价;主成分分析并不适合评价对象较多的情况。 相似文献
20.
高熵合金以高硬度、高强度、良好的耐温性与耐蚀性为主要性能特征。由于高熵合金在设计理念以及合金的微观结构与性能上与传统合金的理论有很大差别,通过对高熵合金组织、结构与性能的研究,可以扩展合金研究的新思路与新方向。在经过对元素间互溶性、原子半径差、电负性等条件的比较后,Cr、Fe、Mn、Cu四种元素做为高熵合金基本组成元素并在此基础上通过加入Ni,Co,Al元素作为主元组成了NiCoCrFeMnCu,AlCoCrFeMnCu,NiAlCrFeMnCu三组六元高熵合金。实验分别对这三组XYCrFeMnCu系列六元高熵合金进行了合金热锻造性能测试通过试验发现:三组高熵合金在热锻造试验中只有NiCoCrFeMnCu合金表现出了较好的变形性能与抵抗裂纹扩展性能。 相似文献